72 Ferns of British India and Ceylon. 
pair nearly as long as the central ones, gradually decreasing in size 
towards the apex, pinnules pinnatifid to nearly the rachis, but always 
more or less connected by a decurrent wing, very membranaceous 
and flaccid, and furnished on both sides sparsely (as is the rachis and 
costa) with long weak pellucid jointed setae; segments of the pinnules 
generally as broad at the apex as at the base, more or less pinnatifid, 
with the lobes obtusely rounded or variously toothed ; veins forked 
and simple reaching the margin ; sori one to each segment, medial on 
the lower vein ; involucre very membranaceous, small scale-Hke, ovate, 
roundish ovate, or oblong, from a broad base fornicate, not nearly 
covering the sorus, fimbriate or entire, fugacious. Bedd, F. B. I. t. 
312 ; also f. 262, under Lastrea. 
Moulmein Mountains; Sikkim 5,000-8000 feet. 
TRIBE v.— LINDSAYEi^:. 
Sori placed in a line, at or very near the edge of the frond, 
covered with an involucre, the inner valve of which is membra- 
naceous, the outer formed of the margin of the frond. 
GENUS XXL— LINDSAYA. {Dryaiid.) 
(In honour of Dr. Lindsay, a writer on Ferns.) 
Sori marginal or submarginal, placed to the apex of, and uniting 
two or more veins ; involucre double, opening outwardly, the inner 
valve membranaceous, the outer formed of the more or less changed 
margin of the frond ; veins free ; pinnae unilateral or equilateral. 
§ Pinnce. ujiilatei^al. 
I. LiNDSAYA CULTRATA. [Swarfz.) Rhizomc wiry, creeping, 
furnished with linear scales, stipes wiry flexuous, 3-6 inches long ; 
fronds 6-12 inches long, about i inch broad, simply pinnate, pinnae 
unequal-sided, lower edge nearly straight near the main nerve ; upper 
edge slightly lobed or nearly entire ; lower pinnae stalked ; texture 
rather coriaceous. Swaiiz. Syn. Fil. 119. Hook. Syii. Fil. 105. 
Bedd F S. 1. t. 2 7,. Lindsaya Lobbiana (Hook.), Bedd. F. B. I. 
28. A variety with rounded pinnae, and a 4-winged rachis. 
